"Walking eggs" is an unusual term used to describe migratory birds, particularly the spotted sandpiper which is known to appear egg-like as it moves quickly along the shoreline. However, there are many other descriptive words that can be used to describe these birds, depending on their characteristics and behaviors. For instance, "waders" can refer to any bird that inhabits shallow water to feed, "shorebirds" for those that live near a body of water, and "sandpipers" to specify a particular bird with a slender bill and long legs. Other terms include "waterbirds," "plovers," and "cripples," depending on geographical location or specific species. These different terms can help accurately describe the diverse range of migratory birds that populate the world's beaches and coastlines.